UFO Sightings in Colorado
3,016 UFO sightings reported in Colorado since 1931, peaking in 2020 (226 reports); most often described as light.
- Total sightings
- 3,016
- Span
- 1931–2022
- Peak year
- 2020 (226 reports)
- Dominant shape
- Light
1931–2022 · peak 2020 (226 reports)
Top cities in Colorado
Denver
1954–2022 · peak 2014 (27 reports)
Colorado Springs
1956–2022 · peak 2014 (25 reports)
Fort Collins
1963–2021 · peak 2018 (14 reports)
Boulder
1969–2021 · peak 2013 (9 reports)
Aurora
1962–2021 · peak 2016 (10 reports)
Grand Junction
1989–2022 · peak 2020 (29 reports)
Longmont
1978–2021 · peak 2013 (10 reports)
Littleton
1965–2022 · peak 2002 (7 reports)
Pueblo
1995–2021 · peak 2020 (12 reports)
Lakewood
1969–2022 · peak 2014 (7 reports)
Loveland
1988–2022 · peak 2005 (6 reports)
Arvada
1959–2021 · peak 2016 (8 reports)
Westminster
1971–2021 · peak 2013 (5 reports)
Greeley
1998–2021 · peak 2016 (11 reports)
Thornton
1997–2021 · peak 2015 (5 reports)
Englewood
2001–2020 · peak 2004 (7 reports)
Estes Park
1954–2021 · peak 2019 (12 reports)
Highlands Ranch
1998–2022 · peak 2013 (4 reports)
Golden
1975–2020 · peak 2017 (4 reports)
Broomfield
1998–2020 · peak 2016 (5 reports)
Denver · CO, USA
Observed large, dark, vaguely boomerang-shaped object move swiftly and silently from NE to S and then arc W
Denver · CO, USA
A triangle-shape object that looked like balls tied together, flying in formation.
Broomfield · CO, USA
Sensation like sonic boom shook house, with no noise -just a pressure wave
Superior · CO, USA
Triangular formation of lights observed shortly after sunset, rotated every few seconds. Other aircraft lights observed in area but did
Erie · CO, USA
Someone pointed out an object in the western sky facing the Rocky mtns that appeared to be not moving. Couldn't tell what it was.
Denver · CO, USA
While visiting relatives in Denver Colorado on the outskirts of the city my daughter and her boy friend pointed to the sky just above t
Lakewood · CO, USA
A very bright white rectangular object which did not appear to be moving, but instead a clould moved over it and then it went behind Gr
Denver · CO, USA
A star was moving, grew very bright, then faded out. a few minutes later we spotted two stars moving fast, North and South. Then we s
Pagosa Springs · CO, USA
Just before dark, I was looking off my porch to the west mountians and saw a blinking white light rising very slowly into the ski until
Colorado Springs · CO, USA
The object looked to me like a soccer ball, it was round, silver colored and motionless while I watched it.
Denver · CO, USA
Star like light moved about 10 moons, disappeared, reappeared and moved 10 more moons then disappeared again.
Denver · CO, USA
Saw a very bright amber light eluminating out of a four pointed objected. about 10:30pm and around this date.
Denver · CO, USA
I saw a very strange looking objecet in the north eastern part of the sky about a week ago.
Cortez (4 miles north of) · CO, USA
Saw light traveling from Southwest to Northeast. It was approximately 60 degrees above the horizon from first sight across the sky till
Highlands Ranch · CO, USA
During the Perseid meteor shower, my family and I noticed three lights moving in a triangular formation from the south to the north.
Boulder · CO, USA
Dark metalic object along Colorado Frontrange
Boulder · CO, USA
Very fast object over boulder
See Report... · CO, USA
This is to alert you to a radio broadcast in Denver at that time with witnesses calling in.
Dinosaur · CO, USA
SOMETIME BETWEEN 11:15-11:30 SUNDAY NIGHT I OBSERVED A HUGE OBJECT IN THE SOUTHERN SKY WHICH WAS BLUE AT FIRST & RAPIDLY TURNED TO ORAN
Denver (50 miles east of) on Interstate 76 · CO, USA
A very bright flash with a trajectory going from left to right and turning colors along the was - 3-4 seconds at most.
Salida · CO, USA
Large cylindrical object steadily crossed the sky in the light of the moon.It did NOT display FAA blinking light.
Salida · CO, USA
Shiny object heading west, 10 miles east of Salida.Planes appear to have chased it away.
Alamosa · CO, USA
Object like a star moving at a rapid rate from the south east. Pin of white light stopped directly overhead, suddenly expanded blue.
Trinidad · CO, USA
At first thought it was meteor but there was heavy cloud cover behind the path. It formed an arc from what looked like NE to SW of Tri
Boulder (North Boulder) · CO, USA
My Girl-Friend and I noticed something strange in the sky above Boulder, Oval in shape and I have a Video Tape of it.. Interested??